grade of purity

 
  • 纯度

grade of purity的用法和样例:

例句

  1. The purity of the water is tested regularly.
    水的纯度定期检测。
  2. Why is high purity polycrystalline silicon necessary?
    为啥多晶硅需要高纯度?

grade of purity的相关资料:

临近单词

今日热词
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